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Modern computers based on() are millions to billions of times more capable than the early machines，and occupy a fraction of the space。Simple computers are small enough to fit into mobile devices, a mobile computers can be powered by small batteries. Personal computers in their va
A.Central Processing unit
B.integrateD.circuits
C.HarD.disk
D.software integration
B.integrateD.circuits
C.HarD.disk
D.software integration
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参考解析
解析：基于（集成电路）的现代计算机是比起 早期的计算机，它占用的空间的更小，能力更强，是早期计算机的数百万倍甚至数十亿倍。轻量型的电脑都足够小，以适应移动设备，一个移动计算机可以通过小型 电池供电。个人电脑被广泛应用，以致于信息时代的一种标志，并且是大多数人认为的“计算机”。
更多 “Modern computers based on() are millions to billions of times more capable than the early machines，and occupy a fraction of the space。Simple computers are small enough to fit into mobile devices, a mobile computers can be powered by small batteries. Personal computers in their va A.Central Processing unit B.integrateD.circuits C.HarD.disk D.software integration ” 相关考题
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Computers and mobile phones, playgh they are indeed making our life__________ and more ________have reduced the need for face-to-face cotyr unication.A.easily;effienenlB.easy,efficientC.easy;efficientlyD.easily;efficiently
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Computers are()of doing billions of calculations in a fraction of a second now.
A.able;B.capable
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共用题干
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共用题干
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B.However
C.Likewise
D.Although
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The key to the industrialization of space is the U.S.space shuttle.With it,t astronauts will acquire a workhouse vehicle（ ）of flying into space and returning many times.Powered by reusable rockets that can lift a load of 65,000 pounds,the shuttle will carry devices for scientific inquiry，as well as a variety of military hardware.A.capable
B.suitable
C.efficient
D.fit
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Any sufficiently advanced technology,noLed Arthur C.Clarke,a British science-fiction writer,is indistinguishable from magic.The fast-emerging technology of voice computing proves his 1.Using it is just like casting a spell:say a few words inLo the air,and a nearby device can 2 your wish.The Amazon Echo,a voice-driven cylindrical computer that sits on a table top and answers to the name Alexa,can 3 music tracks and radio stations,tell jokes,answer trivia questions and control smart 4;even before Christmas it was already resident in about 4qo of American house holds.Voice assistants are 5 in smartphones,too:Apple's Siri 6 0ver2 billion commands a week,and 20%of Google 7 0n Android powered handsets in America are input by voice.Dictating e-mails and text messages now works 8 enough to be useful.Why type when you can talk?This is a huge shift.Simple 9 it may seem,voice has the power to transform computing,by providing a natural means of interaction.Windows,icons and menus,and then touchscreens,were welcomed as more 10 ways to deal with computers than entering complex keyboard 11.But being able to talk to computers.12 the need for the abstraction of a"user interface"at aLI.13 mobile phones were more than exisLing phones without wires,and cars were more than carriages without horses,so computers without screens and keyboards have the 14 to be more useful and powerful than people can imagine today.Voice will not wholly 15 other forms of input and output.SomeLimes it will remain more 16 to converse with a machine by Lyping rather than talking.But voice is destined to 17 a growing share of people's interactions with the technology around them,from washing machines that tell you how much of the cycle they have left to virtual assisLants in corporate call-centres.18,to reach its full potential,the technology requires 19.breakthroughs-and a resolution of the 20 questions it raises around the trade-off between convenience and privacy.16选？A.complicated
B.conventional
C.consistent
D.convenient
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A user has a small network of four computers that they want to connect to a single cable modem. Which of the following devices would allow the user to do this？（）A、Four port switchB、Four port wireless routerC、Four port WAPD、Four port hub
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Which of the following devices can be installed on individual computers throughout the network?（）A、NIPSB、Network-based firewallC、VPN concentratorD、Host-based firewall
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A 100 pair cable is typically used to connect：（）A、telephony distribution.B、businesses with more than 75 computers.C、security cameras.D、computer labs with more than 20 computers.
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Your company includes mobile computer users who frequently work offline. You are planning to deploy Windows 7 by using an image. You have the following requirements： Provide access to all applications when mobile computer users first start their computers. Minimize network and local storage requirements. Provide language-pack support based on the geographic location of the user. You need to ensure that your image-creation strategy meets the requirements. What should you do？（）A、Create a single thin image for all computers.B、Create a single hybrid image for all computers.C、Create one thin image for the mobile computers. Create one thick image for all other computers.D、Create one thick image for the mobile computers. Create one thin image for all other computers.
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All client computers on your company network run Windows 7 and are members of an Active Directory Domain Services domain. Your company policy requires that all unnecessary services be disabled on the computers. The Sales department staff has been provided with new mobile broadband adapters that use the Global System for Mobile Communications (GSM) technology. You need to ensure that portable computers can connect to the broadband GSM network. Which service should be enabled on the portable computers?（）A、WLAN AutoConfigB、WWAN AutoConfigC、Computer BrowserD、Portable Device Enumerator Service
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问答题Conventional(普通）computer models of the atmosphere have limited value in predicting short-lived local storms because the available weather data are generally not detailed enough to allow computers to see clearly the small atmospheric changes that come before thesestorms.
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单选题Which of the following statements represents the advantage of rotary pumps as compared to reciprocating pumps?（）A
The high discharge pressure of the rotary pumps permits a larger volume of fluid per unit time than the reciprocating pumpB
Rotary pumps are capable of pumping more fluid than reciprocating pumps of the same weightC
Rotary pumps occupy only one-half the space of reciprocating pumpsD
Rotary pumps eliminate discharge slippage of the pumped liquid, while this does not hold true for a reciprocating pump
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单选题American adults tend to ______ than teenagers.A
care more about information overloadB
like using computers moreC
dislike using computers moreD
face less danger
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单选题Ten years ago, smaller companies did not use large computers because _____.A
these companies had not enough money to buy such expensive computersB
these computers could not do the work that small computers can do todayC
these computers did not come onto the marketD
these companies did not need to use this new technology
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单选题When is a driver likely to have a sleep-related accident according to researchers?A
In the middle of the morning is 10 times as likely as those driving in the evening.B
Very early in the evening is as likely as those driving early in the morning.C
Very early in the morning is much more likely than those driving early in the evening.D
In the middle of the evening is 10 times as likely as those driving early in the morning.
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填空题Computers are more prominently displayed than books in the San Francisco Public Library.____
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单选题Though the huge mainframe computers of the 1960's ______ the technical community of the time, the much more advanced personal computer of today ______ the older machines in every respect.A
defined, parallelsB
astounded, surpassesC
awed, updatesD
embarrassed, retardsE
accelerated, exemplifies
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问答题Practice 2 The laptop computer is a small, portable computer that’s light and small enough to hold on your lap. It is smaller than a luggage but larger than a notebook computer. A laptop usually weighs between 8 and 14 pounds, and when folded shut is about the size of a small briefcase. Laptops can be plugged in or run on batteries, although the batteries must be recharged every few hours. Laptop computers use a thin, light weight display screen called a flat-panel display, rather than the cathode ray tube technology of larger personal computers. Laptop displays vary widely in quality. Typically, their display screens show fewer lines than displays on larger computers and can be difficult to read in bright light. Laptops are self-contained units, having their own CPUs, memory, and disk drives. While more expensive than a desktop computer with equivalent computing power, a laptop can be ideal for the on-the-go user who needs a second, portable computer. Laptops aren’t always a suitable replacement for desktop computer, since they can’t be expanded or modified easily should your computing needs change. Also, the display is inferior to standard video graphics array（VGA）displays, although active matrix displays compete well except for size.
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